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A student sits at rest on a piano stool that can rotate without friction. The moment of inertia of the student-stool system is 4.4 . A second student tosses a 1.2 mass with a speed of 3.0 to the student on the stool, who catches it at a distance of 0.45 from the axis of rotation. What is the resulting angular speed of the student and the stool?
suppose the speci?c heats of milk and coffee are the same as that of water.
A woman throws a ball at a vertical wall d = 3.0 m away. The ball is h = 1.5 m above ground when it leaves the woman's hand with an initial velocity of 12 m/s at 45°.
their debt flotation costs are currently estimated to be 4% of the issue's value. GST's federal-plus -tax rate is 40%. Illustrate what is the dollar floatation cost on the new issue?
Gillian buys a pendulum clock at a discount store and discovers when she gets it home that it loses minutes each day.
Two charges, q1 and q2, are separated by a distance, r, and exert a force, F, on each other. What will the new force be if:
The mass of a space shuttle is approximately 2.0x10^6 kg. Throughout lift-off, the net force on the shuttle is 1.0x10^7 newtons directed upward. What is the speed of the shuttle 10 seconds after liftoff.
A jumbo jet has a mass of 2.3 × 105 kg and a total wing area of 950 m2, what is the difference in pressure between the upper and lower wing surface
Charge Q = 10E-8 C is placed in the origin. Location A is -3.00m from the charge while location B is 2.00m from the charge.A) Find the potential difference VB - VA between the two points. B) Which point is at the higher potential? Type either "Poi..
A 75-kg person sits on a 3.7-kg chair. Each leg of the chair makes contact with the floor in a circle that is 1.5 cm in diameter. Find out the pressure exerted on the floor by each leg of the chair; assume the weight is evenly distributed.
A sphere with mass 0.3 kg and radius 0.05 cm is rolling without slipping along a horizontal surface at a speed of 10 m/s. What height does the sphere come to rest
A slinky has a mass of 0.28 kg and negligible length. When it is stretched 1.2 m, it is found that transverse waves travel the length of the slinky in 0.68 s. What is the force constant, k, of the slinky
a 1.5-kg mass attached to an ideal massless spring of spring constant of 20N/M oscillates on a horizontal, determine the total energy of the oscillating system
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